The influence of different hydroponic conditions on thorium uptake by Brassica juncea var. foliosa
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- 作者：Dingna Wang ; Sai Zhou ; Li Liu ; Liang Du…
- 关键词：Phytoremediation ; Thorium ; Uptake ; Brassica juncea var. foliosa ; Organic aids ; Hydroponic conditions
- 刊名：Environmental Science and Pollution Research
- 出版年：2015
- 出版时间：May 2015
- 年：2015
- 卷：22
- 期：9
- 页码：6941-6949
- 全文大小：879 KB
- 参考文献：ATSDR (Agency for toxic substances and disease registry) (1999) Thorium. http://?www.?atsdr.?cdc.?gov/?toxfaqs/?tf.?asp??id=-59&?tid=-21
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Sai Zhou (1)
Li Liu (1)
Liang Du (2)
Jianmei Wang (3)
Zhenling Huang (1)
Lijian Ma (1)
Songdong Ding (1)
Dong Zhang (2)
Ruibing Wang (4)
Yongdong Jin (1)
Chuanqin Xia (1)
1. College of Chemistry, Sichuan University, Chengdu, 610064, People’s Republic of China
2. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, People’s Republic of China
3. College of Life Sciences, Sichuan University, Chengdu, 610064, People’s Republic of China
4. Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau - 刊物类别：Earth and Environmental Science
- 刊物主题：Environment
Environment
Atmospheric Protection, Air Quality Control and Air Pollution
Waste Water Technology, Water Pollution Control, Water Management and Aquatic Pollution
Industrial Pollution Prevention - 出版者：Springer Berlin / Heidelberg
- ISSN：1614-7499
文摘
The effects of different hydroponic conditions (such as concentration of thorium (Th), pH, carbonate, phosphate, organic acids, and cations) on thorium uptake by Brassica juncea var. foliosa were evaluated. The results showed that acidic cultivation solutions enhanced thorium accumulation in the plants. Phosphate and carbonate inhibited thorium accumulation in plants, possibly due to the formation of Th(HPO4)2+, Th(HPO4)2, or Th(OH)3CO3 ?/sup> with Th4+, which was disadvantageous for thorium uptake in the plants. Organic aids (citric acid, oxalic acid, lactic acid) inhibited thorium accumulation in roots and increased thorium content in the shoots, which suggested that the thorium-organic complexes did not remain in the roots and were beneficial for thorium transfer from the roots to the shoots. Among three cations (such as calcium ion (Ca2+), ferrous ion (Fe2+), and zinc ion (Zn2+)) in hydroponic media, Zn2+ had no significant influence on thorium accumulation in the roots, Fe2+ inhibited thorium accumulation in the roots, and Ca2+ was found to facilitate thorium accumulation in the roots to a certain extent. This research will help to further understand the mechanism of thorium uptake in plants.